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La tomografia a fascio di elettroni o elec … La tomografia a fascio di elettroni o electron beam tomography è una tipologia specifica di tomografia computerizzata (TC), in cui il tubo radiogeno (che produce i raggi X) non viene mosso meccanicamente al fine di ruotare la sorgente dei raggi X intorno al paziente, ma è stazionario. Il fascio viene mosso elettronicamente lungo un anodo di tungsteno, tracciando un grande arco. In questo modo il movimento del fascio sulla zona anatomica da studiare risulta molto veloce. Questa tecnologia, grazie alla sua grande velocità, è stata sviluppata esplicitamente per migliorare le possibilità di visualizzare le strutture del cuore che non smettono mai di muoversi; ad ogni battito di cuore è possibile svolgere un ciclo completo di movimento.e svolgere un ciclo completo di movimento.
, La tomografía de haz electrónico ultrarráp … La tomografía de haz electrónico ultrarrápida (en inglés Electron beam tomography o EBT), en que el haz de rayos X se mueve en círculo alrededor del cuerpo como en la tomografía axial computarizada, o TAC salvo sus rayos X se desavía por un mecanismo electrónico en lugar de movimiento mecánico. Esto permite los médicos tener vistas diferentes e rápidas de órganos o estructuras en movimiento como el corazón para proporciona muchos más detalles dinámicas. Las informaciones procedente de la absorción o la reflexión los rayos X son enviada a una computadora que interpreta los datos que se presenta en forma bidimensional o tridimensional. En algunos casos se utiliza esa tecnología para diagnosticar cardiopatías porque se puede tomar varias imágenes del corazón, arterias y/o pulmones durante el tiempo de un solo ciclo o durante unas secuencias. un solo ciclo o durante unas secuencias.
, Electron beam computed tomography (EBCT) i … Electron beam computed tomography (EBCT) is a specific form of computed tomography (CT) in which the X-ray tube is not mechanically spun in order to rotate the source of X-ray photons. This different design was explicitly developed to better image heart structures that never stop moving, performing a complete cycle of movement with each heartbeat. As in conventional CT technology, the X-ray source-point moves along a circle in space around an object to be imaged. In EBT, however, the X-ray tube itself is large and stationary, and partially surrounds the imaging circle. Rather than moving the tube itself, electron-beam focal point (and hence the X-ray source point) is swept electronically along a tungsten anode in the tube, tracing a large circular arc on its inner surface. This motion can be very fast. Electron beam CT was unable to compete with more rapid advancement in multidetector CT imager technology and had become completely obsolete by the 2020s.d become completely obsolete by the 2020s.
, Электронно-лучевая томография (ЭЛТ) — особ … Электронно-лучевая томография (ЭЛТ) — особый вид компьютерной томографии (КТ), обеспечивающий время экспозиции в 50 мс и сканирование со скоростью 15-20 изображений в секунду. Эта скорость достаточна для исследований движущегося сердца: четко очерченные изображения могут быть получены без использования синхронизации с ЭКГ. Такую методику называют также кино-КТ, сверхбыстрой КТ, миллисекундной КТ, КТ пятого поколения.Т, миллисекундной КТ, КТ пятого поколения.
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Patent illustration showing a cutaway view … Patent illustration showing a cutaway view of an electron beam computerized tomography system. Components are 22. electron gun, 23. electron beam, 24. focus coil, 27. beam bending coil, 28-31. target rings, 14. detector array, 11. scan tube. The electron beam creates x-rays at the target rings, which radiates through the patient to the detector on the opposite end of the scan tube.ctor on the opposite end of the scan tube.
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La tomografía de haz electrónico ultrarráp … La tomografía de haz electrónico ultrarrápida (en inglés Electron beam tomography o EBT), en que el haz de rayos X se mueve en círculo alrededor del cuerpo como en la tomografía axial computarizada, o TAC salvo sus rayos X se desavía por un mecanismo electrónico en lugar de movimiento mecánico. En algunos casos se utiliza esa tecnología para diagnosticar cardiopatías porque se puede tomar varias imágenes del corazón, arterias y/o pulmones durante el tiempo de un solo ciclo o durante unas secuencias. un solo ciclo o durante unas secuencias.
, La tomografia a fascio di elettroni o elec … La tomografia a fascio di elettroni o electron beam tomography è una tipologia specifica di tomografia computerizzata (TC), in cui il tubo radiogeno (che produce i raggi X) non viene mosso meccanicamente al fine di ruotare la sorgente dei raggi X intorno al paziente, ma è stazionario. Il fascio viene mosso elettronicamente lungo un anodo di tungsteno, tracciando un grande arco. In questo modo il movimento del fascio sulla zona anatomica da studiare risulta molto veloce.natomica da studiare risulta molto veloce.
, Электронно-лучевая томография (ЭЛТ) — особ … Электронно-лучевая томография (ЭЛТ) — особый вид компьютерной томографии (КТ), обеспечивающий время экспозиции в 50 мс и сканирование со скоростью 15-20 изображений в секунду. Эта скорость достаточна для исследований движущегося сердца: четко очерченные изображения могут быть получены без использования синхронизации с ЭКГ. Такую методику называют также кино-КТ, сверхбыстрой КТ, миллисекундной КТ, КТ пятого поколения.Т, миллисекундной КТ, КТ пятого поколения.
, Electron beam computed tomography (EBCT) i … Electron beam computed tomography (EBCT) is a specific form of computed tomography (CT) in which the X-ray tube is not mechanically spun in order to rotate the source of X-ray photons. This different design was explicitly developed to better image heart structures that never stop moving, performing a complete cycle of movement with each heartbeat. Electron beam CT was unable to compete with more rapid advancement in multidetector CT imager technology and had become completely obsolete by the 2020s.d become completely obsolete by the 2020s.
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Tomografía de haz electrónico ultrarrápida
, Electron beam computed tomography
, Tomografia a fascio di elettroni
, Электронно-лучевая томография
|
